| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] [verb] [noun] | 374 |
|
| 2 | [modal v] [verb] have [noun] | 303 |
|
| 3 | [vb mod] [verb] have [noun] | 303 |
|
| 4 | must [verb] have [noun] | 27 |
|
